Home / 6,981.21-10,481.54-3,520.89

Finding the Fourth Proportional to 6,981.21, 10,481.54 and 3,520.89

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Solution

The fourth proportional to 6,981.21, 10,481.54 and 3,520.89 is: 5,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.21 : 10,481.54 = 3,520.89 : x
  2. Step 2: Convert to fraction form
    6,981.21/10,481.54 = 3,520.89/x
  3. Step 3: Cross multiply
    6,981.21x = 10,481.54 × 3,520.89
  4. Step 4: Simplify right side
    6,981.21x = 36,904,331.77
  5. Step 5: Solve for x
    x = 36,904,331.77/6,981.21
  6. Step 6: Final answer
    x = 5,286.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.